The British Third and First armies achieved Achieve the deepest advance since trench warfare began Process_start , along the Scarpe river in the Battle of Arras , which inflicted Causation many losses on the Germans , attracted reserves and captured Conquering Vimy Ridge to the north .

British troops were fighting knee-deep in mud during First World War-style trench battles .

The wood was in area and contained Containing many German observation Perception_active posts , machine-guns and trench mortars .

The conflict Hostile_encounter has been compared to World War I in terms of the tactics used , including large-scale trench warfare with barbed wire stretched across fortified defensive lines , manned machine guns posts , bayonet charges , Iranian human wave attacks , extensive use of chemical weapons by Iraq , and , later , deliberate attacks on civilian targets .

Instead , the soldiers settled Resolve_problem in for another eight months of trench warfare Hostile_encounter .

the germans began Process_start systematic fortification of the area , according to a directive from erich von falkenhayn the german army chief of staff , to fortify the western front so that a small number of infantry could defend Defending the front indefinitely and later in the year began Process_start work on second and third defensive positions but in the somme area , the defences north of the unk were improved Cause_to_make_progress first and by july 1916 the first position defences around mametz were extensive but the second position was a shallow trench and the third position had only been marked Recording out .

The bombardment of Gaza intensified Cause_change_of_strength on 6 November and during the night of 6/7 November successful attacks Attack were launched on several trench systems .

The Germans dug Motion their way closer to the fortress through trench parallels and destroyed Destroying specific sections of the defenses with concentrated bombardments .

German fortification of the area around Mametz and Fricourt had created Creating a web of trenches deep behind the front-line trench , which was irregular making many angles from which an attacker could be engaged .

The wood dominated Control the southern approach to Longueval and Trônes Alley , a German communication trench between Bernafay Wood and the northern tip of Trônes Wood to Guillemont .

The redoubt was built Building after the end Process_end of the Battle of Albert ( 25–29 September 1914 ) , and as French and later British attacks on the Western Front became Becoming more formidable , the Germans added Cause_change_of_position_on_a_scale fortifications and trench positions near the original lines around Hawthorn Ridge .

The Scottish infantry advanced Cause_to_make_progress from a trench from the German lines , half the distance of 1 July , with the support Supporting of tanks , an accurate creeping Self_motion barrage and an overhead machine-gun barrage .

over the winter lull , the french army established Creating the theoretical basis of offensive trench warfare , originating many of the methods which became Becoming standard for the rest of the war .

Infiltration tactics , in which dispersed Dispersal formations of infantry were followed by ( trench cleaners ) , to capture Conquering by-passed strong points were promulgated .

regina trench ( ) was a german trench dug along the north-facing slope of a ridge running from north-west of the village of le sars , unk to stuff redoubt ( ) , close to the german fortifications at thiepval on the somme battlefield .

regina trench ( ) was a german trench dug along the north-facing slope of a ridge running from north-west of the village of le sars , unk to stuff redoubt ( ) , close to the german fortifications at thiepval on the somme battlefield .

It was the longest such trench on the German front during the First World War .

Attacked Attack several times by the Canadian Corps during the Battle of the Ancre Heights , the 5th Canadian Brigade of the 2nd Canadian Division briefly controlled Control a section of the trench on 1 October but was repulsed Defending by counter-attacks of the German Marine Brigade ( equivalent to an army division ) , which had been brought Bringing from the Belgian coast .

on 21 october , the 4th canadian division attacked Attack the western portion of regina trench , as the 18th ( eastern ) division , 25th division and the 39th division of ii corps , attacked Attack the part further west ( known as stuff trench to the british ) .

on 21 october , the 4th canadian division attacked Attack the western portion of regina trench , as the 18th ( eastern ) division , 25th division and the 39th division of ii corps , attacked Attack the part further west ( known as stuff trench to the british ) .

the canadians met Come_together little opposition and gained Getting the objective , as the ii corps divisions captured Conquering stuff trench in thirty minutes , giving the british control of thiepval ridge .

The east end of the trench was captured Conquering by the 4th Canadian Division during the night of

In a part of the operation ( known later as the Battle of Gang Toi ) , 1RAR attacked Attack a VC bunker and trench system .

This sudden transition in intensity , and the spout of fire , was due to the previously unknown trench effect , discovered Know by the computer simulation of the fire , and confirmed Check in two scale model tests .